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hm 400-2 komatsu dumptruck repair

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  • #16
    No there to out of wack, and yes i agree they may not but being a quoted job for my business it has to be done by the book. And i know you can repair a hm300 by cutting the eyelets off just tryna see if the 400 is the same material.

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    • #17
      Depending on how nice your customer wants it or how cheap they are, a "cheap, fast & dirty" way would be to weld a strip over the outside diameter of the black eyelets to bring them back to it's correct shape & then carefully torch out & grind the hole until the pin fits.
      MM250
      Trailblazer 250g
      22a feeder
      Lincoln ac/dc 225
      Victor O/A
      MM200 black face
      Whitney 30 ton hydraulic punch
      Lown 1/8x 36" power roller
      Arco roto-phase model M
      Vectrax 7x12 band saw
      Miller spectrum 875
      30a spoolgun w/wc-24
      Syncrowave 250
      RCCS-14

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      • #18
        Its a client that has hired the dumptruck that has made the damage so it will need to be done good and proper going back to the hire company.

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        • #19
          Has anybody talked to the rental company to see what they want done. They may not accept your repair ,they may want Komatsu to repair it.

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          • #20
            If done nicely the rental co. will never know. Most rental co. would probably tack on extra dollars for machine down time plus mark up on top of what the repair costs. Better to do it before it goes back & not say a word.
            MM250
            Trailblazer 250g
            22a feeder
            Lincoln ac/dc 225
            Victor O/A
            MM200 black face
            Whitney 30 ton hydraulic punch
            Lown 1/8x 36" power roller
            Arco roto-phase model M
            Vectrax 7x12 band saw
            Miller spectrum 875
            30a spoolgun w/wc-24
            Syncrowave 250
            RCCS-14

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            • #21
              When ever we rent newer machines we take photos and the delivery driver takes photos ,same on pick up .You may get away with the repair but the paint gives it away

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              • #22
                the rental company knows, and they are happy for it to be repaired but I want to make sure I am repairing it properly, that's why I contacted komatsu to see if they have a welding procedure and identification of the material, but so far they have not got back to me. some models I know are just a mild steel,others high tensile not sure. thanks for all the replies.

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                • #23
                  Good luck.

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                  • #24
                    Any word back from<br />
                    komatsu? I'm interesting I hearing if those parts are anything other then mild steel. <br />
                    <br />
                    If not, are you gonna try and identify the metal as best you can on your own, like a spark test or something? Highly technical, I know.

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                    • #25
                      I work on many Komatsu equipment and always pre-heat and use t-91 wire for welding.
                      This goes for small equipment all the way to 930E haul trucks. There should be 2 donuts on each side of the ears, take them off, heat and get those ears straight. Weld 2 brand new donuts on each side of both ears with the hole size smaller than original. Build up and line bore.
                      Almost better then new.

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                      • #26
                        hey guys thanks for all the replies, didn't end up getting the job in the end, I'm guessing they didn't like the quote, and I still have not heard back from Lombardy and don't know if I ever will. but thank you all for your help

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                        • #27
                          You wanted the job and get paid to .

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